It's hard to see due to the grass but all those seed heads are from one plant! None of the others in that area can even muster up 1 bloom!
You can well see this ones ready to rock! It's the one I mentioned in my above post, with very serrated leaves, once I start mowing that area they'll really take off, and stool up so you can see them and see how different that one really is!
The single leaf I plucked and pictured is actually rather small for this plant.